Henrik964

Is there a documented failure of the late ims on late 2006 to 2008? I read an article in total 911 where well rept. UK company saying they have NEVER heard of a failure with the late IMS. Very interested to know. Thinking of getting a 997 4s. Im one of the 964 guys...

rsabeebe

what is the exact month where the revised, larger bearing was put into use? anyone know?

BED997

I believe another thread identified a spring 2005 (Feb 05) manu date for the switchover for the 2005 3.8S models. Search for this thread - " Different! - 2005 S owners - what's your engine number and production date?"

alexb76

None has been reported. Article is correct!

JFERR

05 C2S 55K Miles, lots of track time, no issues.

jasper

125K kilometres - no issues. It has the big nut = late IMS bearing.

Mine Is actually a 2002 996 with 195K kilometers *BUT* it had a factory reman engine installed at 70K kilometres in 2005.

I replaced the clutch two months ago and noted the big nut so could not upgrade to the LNE bearing.

The flange and RMS were bone dry. I didn't do anything to either of them.

911ct

33500miles 2005C2 no IMS issue

EricD997

2005 C2 56,000 miles, no IMS problems, just gas, tires, oil and a few filters.

SARGEPUG

Why is the 997.2 even listed??? The IMS was eliminated!

RollingArt

Think it worked out to be late in March of '05.

Yes there have been failures but very few.

Wrong answer.

See post #217 on the previous page of this thread.

And that is not the only one that has been reported right here in this forum.

capri

Stil debating guys whether i should pursue purchasing a 2005 997 manual with less than 10,000 miles in the odometer ? Car appears well kept but the service records seems to be lost.
I'm a bit skeptical because of the possible IMS faitures. For now this is all what my budget would allow me to purchase. Ive also looked at a 2008 cayman s tiptronic but i would prefer manual tranny though.

Hoping to get some insights from this group. Thanks in advance.

Spoddle

Pick up the 05' and update the IMS and RMS. This should run you around $1.5K. That's what I did and haven't looked back. Since my car has higher miles I also updated the clutch.

jasper

+1

Better still, drive it until the cllutch fails, or is about to fail, and do the work then.

You may be pleasantly surprised and find a M97 bearing setup anyway.

There's more difference between the carrera and the cayman than just the trans. They are different cars, with the carrera being more of one.

capri

Is the IMS and RMS done with LN engineering ? is there a link how this procedure is done ? does this mean engine have to be brought done ?
Yes, definitely leaning towards the 05 C2. Had more fun driving that than the Cayman S. Thanks guys!!!!!

Spoddle

IMS upgrades are available from LN engineering. I mentioned replacing the RMS since you may as well while you're in there. Updating the IMS only requires dropping the transmission and not the whole engine.